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1、Technology Creates or Solves Problems?人类文明受技术的影响从未像今天这样强烈，卫星、克隆和互联网都是很好的例子。当然，技术也带来了一些新的问题，关键是让技术通过自身发展克服它们。It seems that human civilization has never been as fueled by technology as it is today.Satellites，Cloning and Internet are all examples of technology that has reshaped our life to an unprecede
2、nted degree.What matters most nowadays is that the power of technology must be ensured to overshadow the curses it brings about.It must be pointed out that technology can aggravate existing problems that are far from its original target.Atomic energy is just the case in point.Although its researches
3、 have a view of optimizing the current energy sources，atomic technology is repeatedly employed to manufacture deadly weapons for the purpose of deterring or even destroying other countries.Technology can also create new problems without alleviating the previous ones.There is no better example than t
4、he automobile.Wasnt it the inventors promise that automobiles could bring speed and convenience to their owners，thus surpassing the other means of transportation? But every morning at rush hours，car owners enjoy neither speed nor convenience from car ownership.Meanwhile car exhaust remains an alarmi
5、ng effect on our environment.Therefore，technology is by no means a “cureall” solution.Yet there is no need to use the above reasons as excuses to stop the development of technology.The key is to control the problems and allow the technology to overcome them through selfadvancement.阅读障碍词1unprecedente
6、d adj.前所未有的2overshadow vt.遮挡3aggravate vt.使严重4optimize vt.充分利用5deter vt.制止6alleviate vt.缓解诱思导读1What does atomic technology bring us according to the passage?It can let people make full use of the current energy sources but it also helps manufacture deadly weapons.2What is your opinion of technology?
7、Technology can not only bring development of human civilization but also cause problems.We should learn how to control and solve the problems.Section Reading ()(Welcome to the unit & Reading).匹配下列单词的词性及汉语意思()1.evolutionAvt.制造；修筑，建造()2.principle Bn.演变，发展；进化()3.receiver Cn.原理，法则；道德原则，行为准则()4.windDn.无线
8、电接收机；听筒，受话器；接受者()5.constructEvt.& vi.上发条；缠绕；蜿蜒，曲折()6.portableFn.专利权；专利证书()7.digitalGvt.播放，转播；接转，转发 n接力赛；中继设备()8.storageHadj.便携式的，轻便的()9.patentIadj.数字信息系统的，数码的，数字式的()10.relayJn.存储，储藏(空间)答案15BCDEA610HIJFG.选择下列句中词组的汉语意思A受益于，从中受益B对做出贡献；有助于C上发条D与齐头并进；与保持同步E依靠F有使用的权利(机会)()1.The clock stopped.I wound it up
9、 to make it tick regularly.()2.Only then did we realize that our economy had benefited from the new technologies greatly.()3.This horse is too weak to keep pace with the others.()4.With the help of the charity，the children can have access to the Internet.()5.We hope your suggestion will contribute t
10、o solving the problem.()6.It would be better to rely on ourselves than on others.答案16CADFBEThe evolution of video and sound devices(设备)Early history of TVThe first public TV broadcasts were made in the USA in 1925.Later，in 1928，the first longdistance TV broadcast was made between the UK and the USA.
11、Regular public broadcasting followed shortly afterwards，first beginning on 11 May 1928 in New York and on 20 August 1929 in London.Many different people contributed to the development of TV.Most early TV broadcasts were made using a system developed by John Logie Baird in the UK.However，his system w
12、as very primitive and had many drawbacks(缺点)An American，Philo Farnsworth，made important breakthroughs in the development of TV in the late 1920s and early 1930s.Modern TVs use many of the principles first discovered by Farnsworth.John Logie Baird constructed the first colour TV in 1928，but it was no
13、t until 1938 that the first colour TV programme was broadcast.It took more than two decades，though，until 1951，for regular colour TV broadcasts to begin in the USA.Regular colour TV broadcasts were delayed(使推迟) in the UK until 1967.However，within a short time nearly all TV broadcasts were made in col
14、our，and within five years more colour TVs than blackandwhite(黑白的) TVs were being used.影像和声音设备的发展电视的早期历史无线电视传输节目于1925年在美国首次公开播出。随后在1928年，英美两国之间第一次实现了远距离电视播送。之后不久便开始定期向公众播放，在纽约的首次开播时间是1928年5月11日，在伦敦的首次开播时间是1929年8月20日。很多不同的人对电视的发展做出了贡献。大部分早期的电视节目使用的是英国的约翰洛吉贝尔德开发的一种系统。然而，他的系统非常原始，有许多缺点。20世纪20年代末和30年代初，美
15、国人斐洛法恩斯沃斯在电视的研发上取得了重大突破。现代电视机使用了许多由法恩斯沃斯首先发现的原理。约翰洛吉贝尔德于1928年制造出第一台彩色电视机，但直到1938年第一个彩色电视节目才播出。彩色电视节目到1951年才得以在美国定期播出，其间经历了二十多年的时间。在英国定期播放彩色电视节目一直拖延到1967年。然而，在短时间内，几乎所有的电视节目都被制作成了彩色的，不到五年，彩色电视机的使用率就超过了黑白电视机。助读讲解现在分词短语beginning on.作伴随状语。现在分词短语using a system developed by.在句中作方式状语；其中过去分词短语developed by.作
16、a system的后置定语。本句为强调句型its.that.，在此强调时间状语not until 1938。The modern age: satellite TVSatellites were used to broadcast TV beginning in 1962.Satellites allow TV to be broadcast live over vast distances，with everyone receiving the same broadcast at the same time.They also make TV accessible(可接触到的) to peo
17、ple who live far away from cities，and satellite dishes(卫星电视碟形天线) can often be seen distributed(使分散) throughout the countryside and remote areas.Of course，only a small percentage(百分率，百分比) of people own satellite dishes.However，most people still benefit from satellite TV，as local TV companies broadcas
18、t the signals they get from satellite receivers to the population living nearby.当代：卫星电视卫星用于播送电视节目始于1962年。卫星让远距离直播电视节目成为可能，大家在同一时间可以收到相同的电视节目。它们也使远离城市的人们可以收看电视，在农村和边远地区经常可以看到卫星天线。当然，只有一小部分人拥有自己的卫星天线。然而，大多数人仍然受益于卫星电视，因为当地的电视公司把从卫星接收器接收到的信号播送给附近的居民。助读讲解be used to do sth.被用来做某事。to be broadcast是动词不定式的被动语
19、态形式。with复合结构，在句中作伴随状语。who引导定语从句，修饰先行词people。as引导原因状语从句；在此从句中，they get from satellite receivers是定语从句，修饰先行词signals；living nearby是现在分词短语作后置定语，修饰the population。Early history of sound recordersIt all began in 1877，when Thomas Edison made the first recording of a human voice on his invention，the record pl
20、ayer.Early record players used round tubes(管子) to record on.However，in 1887 Emile Berliner，a German living in the USA，invented a record player that used discs(唱片) as alternatives to tubes，and so the modern record player was born.The first record players had to be wound up by hand and only played rec
21、ords that were two minutes long.Times surely have changed！录音机的早期历史一切始于1877年，这一年托马斯爱迪生用他发明的留声机第一次录制了人的声音。早期的录音机是使用圆管记录声音的。然而，在1887年，一位侨居美国的德国人埃米尔贝利纳发明了使用唱片来代替圆管的留声机，这样现代录音机就诞生了。最早的留声机必须手摇上发条，而且只能播放两分钟长的唱片。时代确实已经改变！助读讲解when 引导非限制性定语从句，修饰先行词1877。the record player作invention的同位语。现在分词短语living in the USA作后
22、置定语，修饰a German。that引导定语从句，修饰先行词records。Sound and video recordersIn 1928，the first tape recorders used to copy sound were made in Germany.Most early recorders employed steel tape to record on，which made them heavy and difficult to use，or paper tape，which was easier to use but often broke.It was not u
23、ntil the early 1950s that most tape recorders began using plastic tape as they do today.Meanwhile，electrical components(部件) eventually(最后) became so small that，by the late 1960s，portable cassette(盒式磁带) players were developed，along with video recorders which were used by TV stations.By the late 1970s
24、，video recorders small and cheap enough for home use were introduced.录音机和录像机1928年，第一批磁带录音机在德国制造出来。大多数早期的录音机用钢质磁带或者纸质磁带录音。钢质磁带很沉，使用起来困难；纸质磁带用起来虽方便，但常常破损。直到20世纪50年代初，大多数磁带录音机才开始使用塑料磁带，就跟现在一样。同时，电器元件最终变得很小，到20世纪60年代后期，便携式录音机被研制出来，电视台使用的录像机也随之出现。到了20世纪70年代末，足够小巧而价廉的家用录像机被采用。助读讲解which引导非限制性定语从句，修饰先行词stee
25、l tape。which引导非限制性定语从句，修饰先行词paper tape。It was not until.that.是时间状语not until the early 1950s的强调句式。as引导方式状语从句。so.that.引导结果状语从句。which引导定语从句，修饰先行词video recorders。Sound and video go digitalIn 1982，the first CDs were made available.CDs are often used for storing and playing music because they have a much
26、better sound quality than traditional records and cassettes.In 1993，the VCD(影碟) was born，and in 1995，the DVD was invented.The DVD is now the standard for recording and playing back video.声音和视频数字化1982年，最早的CD光盘出现了。它们经常用来存储和播放音乐，因为其音质远远胜过任何传统的唱片和卡式磁带。1993年VCD诞生，1995年DVD问世。目前，DVD是标准的视频录制和回放设备。助读讲解make复合
27、结构的被动语态，形容词available作主语补足语。the standard for 的标准。The futureWith the development of digital technology，sound and video can now be stored on a PC，on the Internet，or using some form of portable storage.This will soon make records，cassette recorders，CDs，DVDs and even TVs things of the past.Technology is
28、now changing faster than most people can keep pace with.Who can foresee(预见) what the future will bring？未来展望随着数字技术的发展，声音和视频现在可以储存在个人电脑上、互联网上，或使用某种形式的便携式储存设备储存。这将很快使唱片、卡带录音机、CD、DVD甚至电视成为过去。技术变革快得使大多数人难以跟上。谁能预料未来会给我们带来什么？助读讲解than引导定语从句，且在从句中作宾语。在带有比较级的句子中，than可以作关系代词，引导定语从句，兼有连词和代词的性质。than在定语从句中也可以充当主语
29、、宾语、表语。 第一步速读了解文章主题和段落大意速读P23教材课文，选择最佳答案This passage mainly tells us Athe early history of TVBthe early history of sound recordersCthe evolution of video and sound devicesDsound and video going digital答案C第二步细读把控文章关键信息细读P23教材课文，选择最佳答案1When and where were the first public TV broadcasts made?AIn 1925 i
30、n the USA.BIn 1925 in the UK.CIn 1928 in the UK.DIn 1928 in the USA.2Satellites were used to broadcast TV beginning in A1967B1962C1951D19383Who made the first recording of a human voice?AEmile Berliner.BThomas Edison.CJohn Logie Baird.DFarnsworth.4What are CDs often used for?ACopying sound.BCommunic
31、ation.CStoring and playing music.DBroadcasting.答案14ABBC第三步研读能力升华接轨高考根据P23教材课文，在空白处填入1个适当的单词或括号内单词的正确形式。The first public TV broadcasts were made in the USA in 1925.Many different people contributed 1.to the development of TV.Most early TV broadcasts were made 2.using(use) a system developed by John L
32、ogie Baird in the UK.However，his system was very primitive and had many 3.drawbacks(drawback)Philo Farnsworth made important breakthroughs in the development of TV in 4.the late 1920s and early 1930s.John Logie Baird 5.constructed (construct) the first colour TV in 1928.But it was not until 1951 6.t
33、hat regular colour TV broadcasts began in the USA.Regular colour TV beginning broadcasts 7.were delayed (delay) in the UK until 1967.Satellites were used to broadcast TV beginning in 1962.Satellites allow TV 8.to be broadcast (broadcast) live over vast distances.They also make TV 9.accessible (access) to people living far away from cities，and satellite dishes can often 10.be seen (see) distributed throughout the countryside and remote areas.